Amazon faces fake supplements and tariff shock as it exits Google Shopping ads
A veteran supplement seller's account of the category on Amazon describes a market where many products contain nothing of what the label promises. Testing of products sourced overseas has turned up items that simply were not what they were sold as, and even brand registration has not stopped counterfeits flowing through commingled inventory.
The exposé also details the marketing psychology behind identical products sold at wildly different prices: rebranded generic ingredients given trendy names, premium packaging adding 20 dollars to the sticker, and formulation claims that do not survive lab testing.
In trade news, August 7 marked the start of a sweeping new US tariff regime, with rates from 10 to 41 percent across more than 60 countries on a tiered system keyed to trade balances. Goods loaded onto vessels by that date escape the new rates if entered by October 5. The sharpest provision is a 40 percent penalty on goods deemed transshipped, products routed through third countries to dodge tariffs, a practice common in Southeast Asia. Malaysia's solar industry is the cautionary tale: after tariffs of up to 250 percent, only two of ten manufacturers survived. A further change lands August 29, when the de minimis exemption letting packages under 800 dollars enter duty-free ends for all countries.
The advertising story of the week was Amazon's abrupt withdrawal from Google Shopping ads in late July. Impression shares fell to zero across the US, UK and Germany between July 21 and 23, down from a 60 percent share in the US days earlier. Agencies saw click costs fall by as much as 40 percent in the categories hit hardest, while rivals like Walmart, Target and Home Depot gained as much as 20 percent impression share.
The strategic reading is agentic AI. Amazon's leadership has confirmed the company is building for buyers that are not human, autonomous software able to complete a purchase with no person involved, and it is building agent infrastructure through open-source tooling, a serverless agent runtime and AWS. At the same time it has updated its site code to block AI agents from outside AI firms, keeping competitors' assistants from siphoning its shoppers. Seen that way, money spent on Google ads amounted to bankrolling a competitor in the fight over AI search.
The backdrop: bots and agents now account for an estimated 80 percent of web traffic, and zero-click searches have risen from 56 to 69 percent since AI-generated answers began appearing. Sellers are being told that optimizing for AI agents, not just human shoppers, is becoming essential.
Also in the briefing: a review roundup ranking the leading FBA training courses, updated TikTok Shop case studies tracking brands that have scaled affiliate-led sales into the tens of millions, and a trivia answer with an edge: an estimated 76 percent of traffic on X is bot-driven.
